[rules-users] Drools flow web console (5.1.M1) deployment in JBoss

satjo jo_satish at yahoo.com
Tue Oct 20 13:47:13 EDT 2009 

I have built the war files using the code from SVN and following is the stack
tarce.
I also see a warning in server logs that says 'WARN  [PluginMgr] Unable to
load plugin: 'org.jboss.bpm.console.server.plugin.ProcessEnginePlugin'. 

Do I need to copy any jar file in JBoss's lib folder
(jboss-4.2.3.GA\server\default\lib)?

Again, here are steps I followed so far:

1.) Downloaded the Standalone Guvnor with JBoss AS.
2.) Copied gwt-console war files (gwt-console-server-drools-{version}.war
and gwt-console-drools-{version}.war) in the Standalone download
(jboss-4.2.3.GA\server\default\ldeploy)
3.) Uploaded a test rule flow in Guvnor's default package and rebuilt it.
4.) Created the data-source (that got deployed fine), did not anything for
history or reports configuration to start with.

JBoss started without any error. When I logged in, I get the following
error.

URL: 'http://localhost:8080/gwt-console-server/rs/tasks/admin' 
Action: 'org.jboss.bpm.console.client.task.LoadTasksAction' 
Exception: 'class com.google.gwt.http.client.RequestException'
HTTP 500: 
HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it
from fulfilling this request.

exception 

org.jboss.resteasy.spi.UnhandledException:
java.lang.IllegalArgumentException: Could not connect task client

org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:319)

org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:230)

org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:206)

org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:360)

org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)

org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)

org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)

org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)


root cause 

java.lang.IllegalArgumentException: Could not connect task client

org.drools.integration.console.DroolsFlowTaskManagement.connect(DroolsFlowTaskManagement.java:48)

org.drools.integration.console.DroolsFlowTaskManagement.getAssignedTasks(DroolsFlowTaskManagement.java:128)

org.jboss.bpm.console.server.TaskListFacade.getTasksForIdRef(TaskListFacade.java:99)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	java.lang.reflect.Method.invoke(Method.java:597)

org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)

org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)
	org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)
	org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)

org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)

org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)

org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)

org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)

org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)

org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

--------------------------------------------------------------
Following is the Server log
--------------------------------------------------
12:31:44,189 WARN  [PluginMgr] Unable to load plugin:
'org.jboss.bpm.console.ser
ver.plugin.ProcessEnginePlugin'
12:31:46,001 ERROR [[Resteasy]] Servlet.service() for servlet Resteasy threw
exc
eption
org.jboss.resteasy.spi.UnhandledException:
java.lang.IllegalArgumentException: C
ould not connect task client
        at
org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationExcept
ion(SynchronousDispatcher.java:319)
        at
org.jboss.resteasy.core.SynchronousDispatcher.handleException(Synchro
nousDispatcher.java:230)
        at
org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(
SynchronousDispatcher.java:206)
        at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispa
tcher.java:360)
        at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispa
tcher.java:173)
        at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.servi
ce(HttpServletDispatcher.java:93)
        at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.servi
ce(HttpServletDispatcher.java:68)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at
org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilte
r.java:59)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:230)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:175)
        at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:182)
        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica
torBase.java:524)
        at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:84)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
        at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC
onnectionValve.java:157)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:262)




Kris Verlaenen wrote:
> 
> Damn, the DroolsFlowCommandDelegate seems to be swallowing the
> exception, as the exception caught there is not added as the root of the
> thrown exception (line 68).  There's no stack trace of a
> NullPointerException in the log (right) before this error?
> 
> I also fixed this on trunk, so the caught NullPointerException is added
> as the root cause now, so the stack trace should now contain the trace
> of the NPE as well.  If there's no NPE in the log, could you update your
> code from SVN, rebuild the wars, try again and send me the stack trace
> again?
> 
> Kris
> 
> Quoting satjo <jo_satish at yahoo.com>:
> 
>> 
>> I have set the data source. Following is the stack trace.
>> 
>> When I go to Settings->System->Overview, I see that
>> org.jboss.bpm.console.server.plugin.ProcessEnginePlugin is not green.
>> 
>> I must have missed something in the installation or copying a
>> dependant jar
>> file. 
>> 
>> 
>> URL:
>> 'http://localhost:8080/gwt-console-server/rs/process/definitions' 
>> Action:
>> 'org.jboss.bpm.console.client.process.UpdateDefinitionsAction' 
>> Exception: 'class com.google.gwt.http.client.RequestException'
>> HTTP 500: 
>> HTTP Status 500 - 
>> 
>>
> --------------------------------------------------------------------------------
>> 
>> type Exception report
>> 
>> message 
>> 
>> description The server encountered an internal error () that
>> prevented it
>> from fulfilling this request.
>> 
>> exception 
>> 
>> org.jboss.resteasy.spi.UnhandledException:
>> java.lang.RuntimeException: Could
>> not initialize stateful knowledge session: null
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:319)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:230)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:206)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:360)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
>> 
>>
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
>> 
>>
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
>> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>> 
>>
> org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
>> 
>>
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>> 
>> 
>> root cause 
>> 
>> java.lang.RuntimeException: Could not initialize stateful knowledge
>> session:
>> null
>> 
>>
> org.drools.integration.console.DroolsFlowCommandDelegate.newStatefulKnowledgeSession(DroolsFlowCommandDelegate.java:69)
>> 
>>
> org.drools.integration.console.DroolsFlowCommandDelegate.getSession(DroolsFlowCommandDelegate.java:77)
>> 
>>
> org.drools.integration.console.DroolsFlowCommandDelegate.<init>(DroolsFlowCommandDelegate.java:35)
>> 
>>
> org.drools.integration.console.DroolsFlowProcessManagement.<init>(DroolsFlowProcessManagement.java:20)
>> 
>>
> org.drools.integration.console.DroolsFlowManagementFactory.createProcessManagement(DroolsFlowManagementFactory.java:11)
>> 
>>
> org.jboss.bpm.console.server.ProcessMgmtFacade.getProcessManagement(ProcessMgmtFacade.java:83)
>> 
>>
> org.jboss.bpm.console.server.ProcessMgmtFacade.getDefinitionsJSON(ProcessMgmtFacade.java:107)
>> 	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> 
>>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> 
>>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> 	java.lang.reflect.Method.invoke(Method.java:597)
>> 
>>
> org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)
>> 
>>
> org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)
>> 	org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)
>> 	org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)
>> 
>>
> org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
>> 
>>
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
>> 
>>
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
>> 
>>
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
>> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>> 
>>
> org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
>> 
>>
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>> 
>> 
>> 
>> 
>> Kris Verlaenen wrote:
>> > 
>> > Did you configure the data source correctly?
>> >
>>
> https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-flow/html/ch14.html#d0e3553
>> > 
>> > The full stack trace of the error that should be visible in the
>> server
>> > console could help to identify the issue as well.
>> > 
>> > Kris
>> > 
>> > Quoting satjo <jo_satish at yahoo.com>:
>> > 
>> >> 
>> >> Could some one share the experience in getting the Drools Flow 5.1
>> >> web
>> >> console working in JBoss?
>> >> 
>> >> I downloaded the “Standalone Guvnor with JBoss AS”
>> (Drools
>> >> 5.1.0.M1 Guvnor
>> >> Standalone) from the download site.
>> >> 
>> >> As it did not have the gwt-console war files
>> >> (gwt-console-server-drools-{version}.war and
>> >> gwt-console-drools-{version}.war) in the Standalone download, I
>> built
>> >> them
>> >> from source code and deployed in JBoss.
>> >> 
>> >> I uploaded a test rule flow in Guvnor’s default package and
>> rebuilt
>> >> the
>> >> package.
>> >> 
>> >> After log  into gwt-console, when I click on process definition, I
>> >> see a
>> >> HTTP 500 error ‘class
>> com.google.gwt.http.client.RequestException',
>> >> ‘ Could
>> >> not initialize stateful knowledge session: null’.
>> >> 
>> >> Any comments on the required steps for viewing the process
>> >> definitions are
>> >> appreciated.
>> >> 
>> >> satjo
>> >> -- 
>> >> View this message in context:
>> >>
>> >
>>
> http://www.nabble.com/Drools-flow-web-console-%285.1.M1%29-deployment-in-JBoss-tp25952512p25952512.html
>> >> Sent from the drools - user mailing list archive at Nabble.com.
>> >> 
>> >> 
>> >> _______________________________________________
>> >> rules-users mailing list
>> >> rules-users at lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >> 
>> > 
>> > 
>> > 
>> > 
>> > Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> > 
>> > 
>> 
>> -- 
>> View this message in context:
>>
> http://www.nabble.com/Drools-flow-web-console-%285.1.M1%29-deployment-in-JBoss-tp25952512p25966668.html
>> Sent from the drools - user mailing list archive at Nabble.com.
>> 
>> 
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>> rules-users mailing list
>> rules-users at lists.jboss.org
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> 
> 
> 
> 
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